Polarity is a critical part of any fiber network. In a nutshell, polarity means that a fiber optic link’s transmit signal at one end of the cable must match the corresponding receiver at the other end. While this concept might seem simple, it becomes more complex with multifiber cables and MPO connectors.
The Method B approach is a popular way to address polarity in both duplex and parallel transmissions. It uses key up connectors on both trunk ends to achieve a transceiver-receiver “flip” so that the fiber located in Position 1 arrives at Position 12 at the opposite end, the fiber located in Position 2 arrives at Position 11 at the opposite end and so on. This method simplifies the design requirements for trunks and patch cords, but traditionally requires specific pairing of different cassettes at each end, as the polarity flip occurs in the cassette.
Leviton has introduced new Universal Polarity Fiber Cassettes that help data center managers simplify things even further. The Base12 cassettes allow for the same interchangeable cassette on both ends of a Method B trunk in a fiber channel, reducing the complexity of a fiber network, ensuring consistent polarity, and streamlining network deployment.
The universal cassettes come with additional benefits:
The new Base12 MTP® to LC cassettes come in 12- or 24-fiber options, and they are available across Leviton’s three popular fiber patching platforms:
MTP is a registered trademark of US Conec, Ltd.